CN114542430B - Air suction silencer, compressor comprising same and refrigerator - Google Patents
Air suction silencer, compressor comprising same and refrigerator Download PDFInfo
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- CN114542430B CN114542430B CN202210307311.7A CN202210307311A CN114542430B CN 114542430 B CN114542430 B CN 114542430B CN 202210307311 A CN202210307311 A CN 202210307311A CN 114542430 B CN114542430 B CN 114542430B
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- 230000003584 silencer Effects 0.000 title claims abstract description 19
- 230000030279 gene silencing Effects 0.000 claims abstract description 18
- 230000002265 prevention Effects 0.000 claims abstract description 11
- 230000002159 abnormal effect Effects 0.000 claims abstract description 3
- 238000005192 partition Methods 0.000 claims description 48
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 238000000926 separation method Methods 0.000 claims description 2
- 230000029058 respiratory gaseous exchange Effects 0.000 description 12
- 230000000694 effects Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000003434 inspiratory effect Effects 0.000 description 2
- 238000010030 laminating Methods 0.000 description 2
- 230000000151 anti-reflux effect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/0027—Pulsation and noise damping means
- F04B39/0055—Pulsation and noise damping means with a special shape of fluid passage, e.g. bends, throttles, diameter changes, pipes
- F04B39/0061—Pulsation and noise damping means with a special shape of fluid passage, e.g. bends, throttles, diameter changes, pipes using muffler volumes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/0027—Pulsation and noise damping means
- F04B39/0083—Pulsation and noise damping means using blow off silencers
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Compressor (AREA)
Abstract
The invention discloses an air suction silencer, a compressor comprising the air suction silencer and a refrigerator, relates to the technical field of compressors, and aims to solve the problem that the refrigerating capacity of the compressor is influenced by air suction backflow in the air suction of the existing compressor silencer. The suction muffler includes: an upper housing; the lower shell is matched with the upper shell to form a silencing cavity, wherein an air suction cavity is arranged in the lower shell, an air suction channel for communicating the air suction cavity with the outside of the lower shell is arranged on the lower shell, and an air inlet channel for communicating the air suction cavity with the silencing cavity is arranged in the lower shell; the backflow prevention assembly is arranged in the air suction cavity, and when gas pushes the backflow prevention assembly to be opened through the air suction channel, the gas flows into the silencing cavity; when the air suction is abnormal, the air pushes the backflow prevention assembly to be closed through the air inlet channel so as to prevent the air in the silencing cavity from flowing back, and the refrigerating capacity of the compressor is improved.
Description
Technical Field
The invention relates to the technical field of compressors, in particular to a suction muffler and a compressor and a refrigerator comprising the same.
Background
At present, the refrigeration performance and the noise level are two important indexes for measuring the performance of the totally-enclosed piston compressor. The reasonable suction muffler structure design can obviously reduce suction noise on one hand, and can improve the refrigerating capacity of the compressor on the other hand. However, most of the existing suction mufflers pay attention to the muffling effect of the muffler in terms of structural design, and the use of the suction muffler effectively reduces the flow noise of the refrigerant gas, but neglects the consideration of the suction effect. For example, in the working process of the piston compressor, the internal pressure of the suction muffler is unstable under the influence of the opening and closing of the suction valve plate and the gas compression in the cylinder, and when the internal pressure of the muffler is greater than the external shell pressure, suction backflow can occur, so that the suction capacity of the compressor is reduced, and the refrigerating capacity of the compressor is finally reduced. Therefore, when designing the suction muffler structure, the problem of suction backflow also needs to be considered.
Disclosure of Invention
In view of the above, the present invention discloses a suction muffler and a compressor and a refrigerator including the same, which are used to at least solve the problem of suction backflow.
In order to achieve the above object, the invention adopts the following technical scheme:
in a first aspect the present invention discloses a suction muffler, comprising:
an upper housing;
the lower shell is matched with the upper shell to form a silencing cavity, wherein an air suction cavity is arranged in the lower shell, an air suction channel for communicating the air suction cavity with the outside of the lower shell is arranged on the lower shell, and an air inlet channel for communicating the air suction cavity with the silencing cavity is arranged in the lower shell;
the backflow prevention assembly is arranged in the air suction cavity;
when the air suction silencer sucks air normally, air flows to the air inlet channel through the air suction channel, and the anti-backflow assembly is pushed to be opened by utilizing air pressure difference so that the air flows into the silencing cavity; when the air suction muffler sucks air abnormally, air flows to the air suction channel through the air inlet channel, and the backflow preventing assembly is pushed to be closed by utilizing air pressure difference so as to prevent the air from flowing back through the air suction channel.
In a further alternative,
the suction muffler further comprises: an inner plate assembly;
wherein the inner plate assembly cooperates with the inner wall of the lower housing to form the suction cavity.
In a further alternative,
the inner plate assembly includes: a front side plate, a rear side plate, a right side plate and a top plate;
the lower casing is provided with a front side plate, a right side plate and a rear side plate, wherein the inner wall of the left side of the lower casing is sequentially connected with the front side plate, the right side plate and the rear side plate to enclose the side peripheral wall of the air suction cavity, the lower part of the inner wall of the left side is connected with the lower part of the right side plate to enclose the bottom wall of the air suction cavity, and the top plate is used as the top wall of the air suction cavity.
In a further alternative,
the backflow prevention assembly is a partition plate assembly,
the partition plate component separates the interior of the air suction cavity to form an air suction upper cavity and an air suction lower cavity;
wherein when gas flows through the lower inspiratory chamber to the upper inspiratory chamber, the diaphragm assembly opens to allow the gas to flow into the muffling chamber; when gas flows to the lower inspiration cavity through the upper inspiration cavity, the baffle plate assembly is closed to prevent the gas from flowing back through the inspiration channel.
In a further alternative,
the diaphragm assembly includes:
the upper partition plate is divided into an upper part and a lower part on the right side in the air suction cavity;
the lower baffle, the baffle is in two parts about the inside left side separation of suction chamber, wherein: the upper side surface of the lower partition plate and the lower side surface of the upper partition plate are oppositely arranged so as to form an airflow channel between the upper side surface of the lower partition plate and the lower side surface of the upper partition plate;
one side of the switch plate is rotatably arranged on the lower side surface of the upper partition plate;
and one side of the limiting baffle is fixed on the upper side surface of the lower partition plate, and the limiting baffle can be matched with the switch plate to open and close the airflow channel.
In a further alternative,
the free edge of the limiting baffle faces obliquely upward, and the included angle between the limiting baffle and the horizontal plane ranges from 30 degrees to 60 degrees.
In a further alternative,
the free edge of the upper clapboard faces to the obliquely upper part, and the included angle between the upper clapboard and the horizontal plane is 30-60 degrees;
the free edge of the lower clapboard faces to the oblique lower side, and the included angle between the lower clapboard and the horizontal plane is 30-60 degrees.
In a further alternative,
the lower partition plate is parallel to the upper partition plate, and the limiting baffle is perpendicular to the lower partition plate.
In a further alternative,
the adjacent three plate edges of the upper partition plate are respectively connected with the front side plate, the right side plate and the rear side plate, and the free edge of the upper partition plate extends towards the left side of the air suction cavity so as to divide the upper part and the lower part at the right side in the air suction cavity;
three adjacent plate edges of the lower partition plate are respectively connected with the rear side plate, the left inner wall of the lower shell and the front side plate, and a free edge of the lower partition plate extends towards the right side of the air suction cavity so as to divide the left side inside the air suction cavity into an upper part and a lower part;
when gas flows to the upper air suction cavity through the lower air suction cavity, the free edge of the switch plate is opened towards the direction far away from the limit baffle; when gas flows to the air suction lower cavity through the air suction upper cavity, the free edge of the switch plate is opened towards the direction far away from the limiting baffle.
In a further alternative,
the backflow prevention assembly is a switch plate, wherein the switch plate is rotatably arranged on the upper side of the air suction channel outlet within a preset angle.
In a second aspect of the invention, there is disclosed a compressor comprising a suction muffler as described in any one of the preceding claims.
A third aspect of the invention discloses a refrigerator comprising a suction muffler as described above.
Has the advantages that: the one-way air inlet structure is arranged at the air inlet of the air suction silencer, so that the flow of air from the silencer to the shell is blocked, the problem of air suction backflow of the compressor is solved, and the refrigerating capacity of the compressor is improved.
Drawings
The above and other objects, features and advantages of the present disclosure will become more apparent by describing in detail exemplary embodiments thereof with reference to the attached drawings. The drawings described below are merely exemplary embodiments of the present disclosure, and other drawings may be derived by those skilled in the art without inventive effort.
FIG. 1 illustrates a schematic diagram of a muffler structure according to an embodiment;
FIG. 2 is a block diagram illustrating an embodiment of a muffler for preventing backflow of intake air;
FIG. 3 shows an enlarged view of portion A of FIG. 1;
FIG. 4 illustrates a gas flow pattern of an embodiment of the muffler when breathing in;
FIG. 5 illustrates a gas flow pattern of an embodiment of the muffler with suction recirculation.
Wherein: 1. an upper housing; 2. a lower housing; 3. an air outlet; 4. an exhaust passage; 5. an air suction passage; 6. a lower air suction cavity; 7. a lower partition plate; 8. a limiting baffle; 10. an upper partition plate; 9. a switch plate; 11. an upper inspiration cavity; 12. an intake passage; 13. a partition plate; 14. a sound-deadening chamber; 15. a resonant cavity; 16. and a through hole.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
The terminology used in the embodiments of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in the examples of the present invention and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, and "a" and "an" generally include at least two, but do not exclude at least one, unless the context clearly dictates otherwise.
It should be understood that the term "and/or" as used herein is merely a relationship that describes an associated object, meaning that three relationships may exist, e.g., a and/or B, may represent: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.
It should also be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a good or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such good or system. Without further limitation, an element defined by the phrases "comprising one of \8230;" does not exclude the presence of additional like elements in an article or system comprising the element.
The muffler of breathing in at present breathes in breathe in the backward flow problem of inhaling mainly is: in the working process of the piston compressor, the internal pressure of the air suction silencer is unstable under the influence of the opening and closing of the air suction valve plate and the compression of gas in the cylinder, and when the internal pressure of the silencer is greater than the external shell pressure, air suction backflow can occur, so that the air suction quantity of the compressor is reduced, and the refrigerating capacity of the compressor is finally reduced. According to the invention, the anti-backflow component (such as a limit baffle and a switch plate) is designed at the air inlet of the air suction silencer, and the functions of automatic opening during air suction and automatic blocking during air suction backflow are realized by utilizing the pressure difference between the interior and the exterior of the silencer cavity, so that the air suction silencer has a one-way air suction function, and is simple in structure and high in feasibility.
To further illustrate the technical solution of the present invention, the following specific examples are provided as shown in fig. 1 to 5.
Example 1
As shown in fig. 1-3, in the present embodiment there is provided a suction muffler comprising:
an upper case 1;
the lower shell 2, the lower shell 2 cooperates with upper shell 1 to form the sound-deadening chamber, wherein there are air suction chambers in the lower shell 2, there are air suction passages 5 communicating air suction chamber and exterior of lower shell 2 on the lower shell 2, there are air inlet passages 12 communicating air suction chamber and sound-deadening chamber 14 in the lower shell 2;
the backflow prevention assembly is arranged in the air suction cavity;
when the air suction silencer normally sucks air, the air flows to the air inlet channel 12 through the air suction channel 5, and the air pressure difference is utilized to push the anti-backflow component to be opened so that the air flows into the silencing cavity; when the suction muffler sucks abnormal air, the air flows to the suction passage 5 through the air inlet passage 12, and the backflow preventing assembly is pushed to be closed by utilizing the air pressure difference so as to prevent the air from flowing back through the suction passage 5.
The muffler of breathing in this embodiment utilizes the silencer intracavity and the chamber external pressure difference through at its air inlet department design anti-reflux subassembly, realizes opening automatically when admitting air, and the function of automatic blocking during the backward flow of breathing in, and it makes the muffler of breathing in have one-way air intake function, simple structure, and the feasibility is high.
In some optional aspects, the suction muffler further comprises: an inner plate assembly. Wherein the inner plate component is matched with the inner wall of the lower shell to form a suction cavity.
As shown in fig. 1 to 3, the inner panel assembly includes: front side board, back side board, right side board and roof. Wherein the left side inner wall of lower casing meets in proper order with preceding curb plate, right side board and posterior lateral plate and encloses the side wall of establishing out the chamber of breathing in, and the lower part of left side inner wall meets with right side board lower part and in order to enclose the diapire of establishing out the chamber of breathing in, and the roof is as the roof of the chamber of breathing in.
It should be noted that the front side plate corresponds to the front side plate in fig. 2, the rear side plate corresponds to the rear side plate in fig. 2, the right side plate corresponds to the right side plate in fig. 2, and the top plate corresponds to the upper side plate in fig. 2.
As shown in fig. 1-3, in some alternatives, the backflow prevention assembly is a baffle assembly. The partition plate component separates the interior of the air suction cavity to form an air suction upper cavity 11 and an air suction lower cavity 6; wherein when gas flows to the upper suction chamber 11 through the lower suction chamber 6, the diaphragm assembly is opened to allow the gas to flow into the muffling chamber; when gas flows through the upper suction chamber 11 to the lower suction chamber 6, the diaphragm assembly closes to prevent gas from flowing back through the suction passage 5.
Preferably, the diaphragm assembly comprises:
the upper partition plate 10 is divided into an upper part and a lower part on the right side in the air suction cavity;
a switch plate 9, one side of the switch plate 9 is rotatably arranged on the lower side surface of the upper partition plate 10;
and one side of the limit baffle plate 8 is fixed on the upper side surface of the lower partition plate 7, and the limit baffle plate can be matched with the switch plate to open and close the airflow channel.
When the gas flows to the upper air suction cavity 11 through the lower air suction cavity 6, the free edge of the switch plate 9 (namely, the edge which is connected with the upper clapboard and is opposite to the switch plate) is opened towards the direction far away from the limit baffle plate 8; when the gas flows to the lower air suction cavity 6 through the upper air suction cavity 11, the free edge of the switch plate 9 is opened towards the direction far away from the limit baffle 8.
As shown in fig. 1-3, in some alternatives, the free edge of the position-defining flapper 8 is disposed diagonally upward and the angle of the position-defining flapper to the horizontal is in the range of 30-60 °.
Correspondingly, the free edge of the upper clapboard 10 (namely, the edge of the upper clapboard which is not connected with the inner wall of the air suction cavity) faces to the obliquely upper part, and the included angle between the upper clapboard 10 and the horizontal plane is 30-60 degrees; the free edge of the lower clapboard 7 (namely, the edge of the lower clapboard which is not connected with the inner wall of the air suction cavity) faces to the obliquely lower direction, and the included angle between the lower clapboard 7 and the horizontal plane ranges from 30 degrees to 60 degrees. Preferably, the lower partition 7 and the upper partition 10 are parallel to each other, and the limit baffle 8 and the lower partition 7 are perpendicular to each other.
As shown in fig. 2-3, in some alternative ways, three adjacent plate edges of the upper partition plate are respectively connected with the front side plate, the right side plate and the rear side plate, and the free edge of the upper partition plate 10 extends towards the left side of the air suction cavity to divide the upper part and the lower part at the right side inside the air suction cavity; the adjacent three plate edges of the lower partition plate 7 are respectively connected with the rear side plate, the left inner wall of the lower shell and the front side plate, and the free edge of the lower partition plate extends towards the right side of the air suction cavity so as to separate an upper part and a lower part on the left side in the air suction cavity.
When gas flows to the upper gas suction cavity 11 through the lower gas suction cavity 6, the free edge of the switch plate 9 is opened towards the direction far away from the limit baffle plate 8; when the gas flows to the lower air suction cavity 6 through the upper air suction cavity 11, the free edge of the switch plate 9 is opened towards the direction far away from the limit baffle 8.
An alternative to the backflow prevention assembly is also provided in this embodiment. Specifically, the backflow prevention assembly is a switch plate, wherein the switch plate is rotatably arranged on the upper side of the outlet of the air suction channel within a certain angle. It should be noted that, in order to prevent the switch board from being unable to effectively rotate in the vertical direction to close the outlet of the suction channel, a baffle or a boss may be additionally disposed at a corresponding position on the inner sidewall of the lower casing (e.g., corresponding to the upper side of the outlet of the suction channel), so as to limit the opening angle of the switch board.
In some alternatives, as shown in fig. 1, the sound-deadening chamber 14 further includes a chamber partition 13, a resonance chamber 15, and a through hole 16. The partition plate 13 divides the silencing cavity 14 into two cavities, and is combined with a resonant cavity 15 formed by the upper shell 1, so that the silencing quantity can be increased, the sound mode of a specific cavity can be eliminated, and the through hole 16 arranged at the bottom of the lower shell 2 can play a role in supplementing refrigerating gas in the silencing cavity 14 and discharging a small amount of oil liquid entering the cavity.
A specific structure of the suction muffler and its operation will be described below.
As shown in fig. 1 to 3, the suction muffler of the present invention mainly includes an upper casing 1, a lower casing 2, an exhaust passage 4, a suction passage 5, a lower partition plate 7, a limit baffle 8, a switch plate 9, an upper partition plate 10, a partition plate 13, an intake passage 12, a muffling chamber 14, a resonance chamber 15, and a through hole 16. Wherein the upper shell 1 and the lower shell 2 form the main body of the silencer, the air suction channel 5 is communicated with the air suction lower cavity 6, the air suction upper cavity 11 is communicated with the silencing cavity 14 through the air inlet channel 12, and the exhaust channel 4 is connected with the silencing cavity 14 and the air outlet 3 of the air suction silencer. In addition, the lower baffle plate 7, the limit baffle plate 8 and the upper baffle plate 10 in the suction cavity are fixed baffle plates. Wherein, the lower baffle plate 7 and the upper baffle plate 10 are parallel to each other and are connected with the inner wall (the lower shell and the inner plate component) forming the air suction cavity; the limit baffle 8 is vertical to the lower clapboard 7 and is also connected with an inner plate component of the suction muffler; the switch board 9 is a rotatable baffle, the upper end of the switch board is connected with the upper partition board 10 through a rotating shaft, and the free edge of the switch board 9 can rotate around the rotating shaft, so that the switch board rotates from a vertical state to a horizontal state or rotates from the horizontal state to the vertical state. When no gas flows in the silencer channel, the switch plate 9 is in a vertical position, the free edge of the switch plate just contacts with the limit baffle 8 and is attached together to form sealing, and the position is defined as an initial position.
When the pressure in the upper air suction cavity is equal to the pressure in the lower air suction cavity, the switch plate 9 is free from the action of external force, but under the action of gravity, the switch plate can just block the air inlet when being in the initial position.
As shown in fig. 4, in a normal air suction condition, the pressure in the upper air suction cavity is lower than the pressure in the lower air suction cavity, the switch plate 9 is pushed upwards under the action of the pressure difference between the inside and the outside of the cavity and forms an opening with the limit baffle plate 8, and the larger the pressure difference is, the larger the opening is until the maximum opening position, namely, the horizontal position is reached. In the air suction process, air flow enters the air suction lower cavity 6 from the air suction channel 5, then enters the air suction upper cavity 11 from an opening formed by the limit baffle 8 and the switch 9, then enters the silencing cavity 14 from the air inlet channel 12, and finally is discharged from the air outlet 3 through the exhaust channel 4 after being silenced.
As shown in figure 5, the backward flow operating mode of breathing in, the last intracavity pressure of breathing in is higher than the pressure of breathing in the lower intracavity, and switch plate 9 is in initial vertical position, with limit baffle 8 laminating together, the shutoff air inlet, under the effect of pressure differential, limit baffle 8 is inseparabler with the laminating of switch plate 9, and pressure differential is big more, and the shutoff effect is better to the backward flow of breathing in can have been prevented.
It should be noted that the suction muffler in this embodiment can be widely applied to compressors. The compressor may be a compressor for an air conditioner or a compressor for a refrigerator, etc.
Exemplary embodiments of the present disclosure are specifically illustrated and described above. It is to be understood that the present disclosure is not limited to the precise arrangements, instrumentalities, or instrumentalities described herein; on the contrary, the disclosure is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims.
Claims (10)
1. A suction muffler, characterized in that it comprises: an upper housing; the lower shell is matched with the upper shell to form a silencing cavity, wherein an air suction cavity is arranged in the lower shell, an air suction channel for communicating the air suction cavity with the outside of the lower shell is arranged on the lower shell, and an air inlet channel for communicating the air suction cavity with the silencing cavity is arranged in the lower shell;
the backflow prevention assembly is arranged in the air suction cavity;
when the air suction silencer sucks air normally, air flows to the air inlet channel through the air suction channel, and the anti-backflow assembly is pushed to be opened by utilizing air pressure difference so that the air flows into the silencing cavity; when the suction muffler sucks abnormal air, the air flows to the suction channel through the air inlet channel, and the backflow preventing assembly is pushed to be closed by utilizing air pressure difference so as to prevent the air from flowing back through the suction channel;
the anti-backflow assembly is a partition plate assembly which partitions the interior of the air suction cavity to form an air suction upper cavity and an air suction lower cavity; when the gas flows to the upper inspiration cavity through the lower inspiration cavity, the gas pushes the clapboard assembly to be opened so that the gas flows into the silencing cavity; when gas flows to the lower inspiration cavity through the upper inspiration cavity, the gas pushes the clapboard assembly to be closed so as to prevent the gas from flowing back through the inspiration channel;
the diaphragm assembly includes: the upper partition plate is divided into an upper part and a lower part on the right side in the air suction cavity; the lower baffle, the baffle is in two parts about the inside left side separation of suction chamber, wherein: the upper side surface of the lower clapboard is arranged opposite to the lower side surface of the upper clapboard so as to separate the air suction upper cavity and the air suction lower cavity in the air suction cavity, and an air flow channel is formed between the upper side surface of the lower clapboard and the lower side surface of the upper clapboard; one side of the switch plate is rotatably arranged on the lower side surface of the upper partition plate;
and one edge of the limiting baffle is fixed on the upper side surface of the lower partition plate, and the limiting baffle is matched with the switch plate to open and close the airflow channel.
2. The suction muffler of claim 1, further comprising: an inner plate assembly;
wherein the inner plate assembly cooperates with the inner wall of the lower housing to form the suction cavity.
3. The suction muffler of claim 2, wherein the inner plate assembly comprises: a front side plate, a rear side plate, a right side plate and a top plate;
the lower casing is provided with a front side plate, a right side plate and a rear side plate, wherein the inner wall of the left side of the lower casing is sequentially connected with the front side plate, the right side plate and the rear side plate to enclose the side peripheral wall of the air suction cavity, the lower part of the inner wall of the left side is connected with the lower part of the right side plate to enclose the bottom wall of the air suction cavity, and the top plate is used as the top wall of the air suction cavity.
4. The suction muffler as claimed in claim 1, wherein the free edge of the limiting baffle is disposed obliquely upward, and the angle between the limiting baffle and the horizontal plane is in the range of 30 ° to 60 °.
5. The suction muffler according to claim 4,
the free edge of the upper clapboard faces to the obliquely upper part, and the included angle between the upper clapboard and the horizontal plane is 30-60 degrees; the free edge of the lower clapboard faces to the oblique lower side, and the included angle between the lower clapboard and the horizontal plane is 30-60 degrees.
6. The suction muffler according to claim 5,
the lower partition plate is parallel to the upper partition plate, and the limiting baffle is perpendicular to the lower partition plate.
7. The suction muffler according to claim 3,
the adjacent three plate edges of the upper partition plate are respectively connected with the front side plate, the right side plate and the rear side plate, and the free edge of the upper partition plate extends towards the left side of the air suction cavity so as to divide the upper part and the lower part at the right side in the air suction cavity;
three adjacent plate edges of the lower partition plate are respectively connected with the rear side plate, the left inner wall of the lower shell and the front side plate, and a free edge of the lower partition plate extends towards the right side of the air suction cavity so as to divide the left side inside the air suction cavity into an upper part and a lower part;
when gas flows to the upper air suction cavity through the lower air suction cavity, the free edge of the switch plate is opened towards the direction far away from the limit baffle; when gas flows to the air suction lower cavity through the air suction upper cavity, the free edge of the switch plate is opened towards the direction far away from the limit baffle.
8. The suction muffler of claim 1, wherein the backflow preventing member is a switching plate rotatably provided at an upper side of the outlet of the suction passage within a predetermined angle.
9. A compressor, characterized in that it comprises a suction muffler according to any one of claims 1 to 8.
10. A refrigerator characterized in that it comprises the compressor of claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210307311.7A CN114542430B (en) | 2022-03-25 | 2022-03-25 | Air suction silencer, compressor comprising same and refrigerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210307311.7A CN114542430B (en) | 2022-03-25 | 2022-03-25 | Air suction silencer, compressor comprising same and refrigerator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114542430A CN114542430A (en) | 2022-05-27 |
| CN114542430B true CN114542430B (en) | 2023-03-24 |
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| CN202210307311.7A Active CN114542430B (en) | 2022-03-25 | 2022-03-25 | Air suction silencer, compressor comprising same and refrigerator |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR101386477B1 (en) * | 2008-01-10 | 2014-04-18 | 엘지전자 주식회사 | Noise reducing device for hermetic type compressor |
| CN103322246A (en) * | 2012-03-23 | 2013-09-25 | 成都酷玩网络科技有限公司 | Novel check valve preventing transformer oil from flowing backwards |
| EP3277956B1 (en) * | 2015-03-31 | 2020-02-12 | Arçelik Anonim Sirketi | Suction muffler for use in a hermetic compressor |
| CN211343264U (en) * | 2019-12-09 | 2020-08-25 | 黄石东贝电器股份有限公司 | Air flow convolution silencing type air suction silencer |
| CN113757075A (en) * | 2021-09-23 | 2021-12-07 | 珠海格力电器股份有限公司 | Compressor muffler air inlet structure and reciprocating compressor |
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2022
- 2022-03-25 CN CN202210307311.7A patent/CN114542430B/en active Active
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